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.............................................................................................7
工艺评定.........................................................................................................................7
记录.................................................................................................................................7
工艺规程.........................................................................................................................7
焊接工艺规程的变更...................................................................................................11
试验管接头的焊接—对接焊.......................................................................................12
焊接接头的试验—对接焊...........................................................................................12
刻槽锤断试...........................................................................................................13验
试验管接头的焊接—角焊...........................................................................................17
焊接接头的试验—角焊...............................................................................................17
6 焊工资格.................................................................................................................................18
宋慧勇收集整理 概述...............................................................................................................................18
单项资格.......................................................................................................................20
全项资格.......................................................................................................................20
外观检查...............